<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <script src="./vue.js"></script>
</head>

<body>
    <div id="app">
        <myheader></myheader>
    </div>
    <script>
        Vue.component('myheader', {
            template: `
            <div id="app">
                <h1>{{title}}</h1>
            </div> 
            `,
            data() {
                return {
                    title:"SV山地自行车"
                }
            },
        });
        new Vue({
            el:"#app"
        })
    </script>
</body>

</html>